Bubbler tip



Aug. 26, 1930. F. A. BlCgKNELL ET AL 1,774,193

BUBBLER T I P Filed Sept. 12, 1928 F/GL/ F/G. Z

'INlfENTORS A TTORNEY.

Patented Aug. 26, 1930 N TED FA E oFF cE rRnnKABIoKNnLL', or FLORENCE, AND JUL IUSI. EST, rrAYnnNvI LniMAsSacHUsnTTS. ASSIGNORS To PURO SA I ARY DRINKING FOUNTAIN CO P NY, A 00- i ject applied to the rim of the outlet orifice,

,vantages or" our invention by the'means il-. 'lustrated in the accompanyingdrawings, in

' PARTNERSHIP'COMPOSED 0F CHRISTIAN DENVILLE, MASSACHUSETTS J, HILLIs AND REUBEN 3, Trims, or HAY- BUBBLER Trr Application filed sep't'ember a 1928. Serial No. 305,451.

Two objects are attained byour invention vFirst, the strainer or filter, which forms a part of the bubbler tip, is automatically oleaned'during any and all periods of use of said tip; and, second,contamination of the tip by means of the finger-or some otheroband squirting Water by placing such finger or object over said orifice, as may be done with the ordinary tip, are prevented. Theseare important advantages because of the increased sanitary condition in which the tip is maintained at all times, and the prevention of squirting of water about by'small boys and malicious persons.

The filter prevents all foreign matter of any appreciable size whatsoever from escaping to the outlet of the tip where it would be liable to-be taken in by. a person drinking;

Other objects and advantages will appear in the courseoi' the following description. I e attain the objects'and secure the adwhich Figure Fig. 3, a central, vertical section th'roughthe tip, and, Fig. 4,, enu-n vertical section ilar parts throughout the several views,

This tip'is designed to be mounted on the supply nipple "of a" drinking fountain, over" a bowl which receives the waste water, but,

inasmuch as such'nip'ple and bowl are not material parts of the'pr'esent; invention, and

. may vary. extensively, they are. not shown in connection herewith; In fact, it'is to be uniderstood that the tip may be. mounted on any" suitable nipple or supplypipe;and all other parts and members of a drinking foun- 1 tain dispensed with. There is usually a valve,

1 is a top planof g abubbler tip which embodies a practical form ofour in-' n vention; Fig. 2, a side elevation of said tip; outside of said "base, saidpassage inclining I 85 for letting on and shutting ofi the water to and from thetip, located. in the supply pipe on which-the tip is, directly or indirectly mounted, but-it, is not deemed necessary to illustrate such valve here,

Our hubbler tip comprises a base l a shell 2, and astrainer or filter 3. V I I p The base 1 is internally screw threaded at Q to enable said base to be mounted onand engaged with the supply nipple ot a drinking fountain, or any supplynippleor pipe, and has ts-intermediate portion externally screw threaded to receive an internally screwthreaded part at the bottom of the shell; 2, there being an exterior" shoulder v5 on "said base below said screw-threaded part to receive and seat the under side ofsaid' shell, The upper portion of the base 1 is inthe form of a dome 6 of less diameter than the portions ofsaid'base Which are below. From theaXial center of :the dome 6 rises a rod'f7.

' her 9;- The chambers-8' and 9 open into each other, said first-named chamber is in open communication with the open bottom of the base 1. In the wall of the chamber t) is-a plurality'of openings orports 10. Within the lease at thefbottom of the chamber 8 is a shouler "I1.

Besides thescreW-threaded opening in the bottom of the shello2, said shell has a discharge opening or orifice 13 at the top. w The rod 7 extends upwardly from the "dome6 through the orifice 13 to apoint some little I 7 An oblique passage 12 is formed and arranged in the base 1 to open at onejend distance above the top-of said orifice, or far enough-to prevent covering or closingsaid' stantially the shape illustrated in the drawings, and" has therein a discharge chamber 14;,into which the dome 6- extends' and the chamber 92 opens through the ports 10.

The filter 3; may be made'of fine wire-mesh orifice with the finger. Theshell 2 is of subopen bottom of the chamber 9. The filter 3 V is thus held securely in place in the chamber 8. There is a portion of the chamber 8 which surrounds-a corresponding port-ion of the thii'ough the filter 3 filter, and some of the water that passes through said filter enters this space outside without being able to enter the chamber 9. Thechamber 8 must be of sufficient size to receive a filter properly proportioned to take care of the volume of water required to pass through the same, and also to provide the aforesaid outside space;

The mesh of the wire-gauze, of which the filter 3 is usually constructed, should be sufficiently fine to prevent sand, grit, scale, vegetable, and animal matter, etc., from passing through the-same.

The ports 10 are located in the wall of the dome 6 at the bottom thereof, thus a compression space for the water entering the. chamher 9 from below is left in the upper part of said. chamber, whereby is insured afull and completefiow' of Water through said ports.

The'discharge chamber 14 is shaped to concentrate and form into a round stream the whirling water which enters said chamber through theports 10. This water is thrown upwardly in hollow formation until it arrives art-the orifice 13 where is produced a circular colum n which passes through said orifice, risessome distance above the same, and then spreads out in all directions in the form of a mushroom or umbrella-shaped, drinking bubble, The water flows up around the rod 7, as said water approaches and passes through and above the orifice 18, and the bubble is formed or produced above thejtop ofsaidrod.

The water enteringthe base 1 at the bot tom, passes lu'iwardly in said base, into and into the chamber 9, and also'into that portion of the-chamber 8 which outside of said filter. The water caught and held back in the chamber'S, by impinging against'the top and sides of said clmmber may return through the filter and, assist in cleaning the. same. The passage 12 is also an important factor in keeping the filter 3 clean, due to thefact that, the water in passing through the filter meets with some'resistance when it strikes or encounters the same,

and some ofthe'iater is thereby forced or thrownback or down andout through said passage. Thus a separate current may be established, that is, a current having a direcseparate currentcontinuously washes the inner surfac'eof' and carries off'all foreign mat-' ter caught by the filter, thereby tending to prevent any possibility of contaminati on.

The general operation of the b-ubbler tip is briefly described as follows:

l Vater, admitted at the bottom of the base 1, passes upwardly through the filter 3 into the chambers 8 and 9, through the ports 10 into the chamber 14, and through the orifice 13, around the rod '7, in the form of a cylindrical stream at the apex of which is a bubble of the shape and size required for drinking purposes. Some of the water passing through the filter 3 enters the restricted space in the chamber 9, which space is outside of said filter, and the water in said space is cushioned and may flow back through said filter and escape through he passage 12, so that said filter, not only is subjected to the action of the outgoing water, but also to the action ofthe water which may return from the chamber 8 through the filter, and to the action of the water, on the inside of the filter, which does not pass through the filter, but, taking a different course from that of the main volume, runs off through the passage 12. It is clear, therefore, that the outside and inside and practically all parts of the filter 8 are so thoi-ouglilywaslied and cleaned, automatically as it were, by the water, there is almost no opportunity for the permanent, and hardly for the temporarily, lodgment thereon or therein, or for the aermanent engagement therewith, of any oreign matter or substance, unless it be of the most minute and tenuous character.

When the water is shut off, the tip is thoroughly and completely drained through the ports 10, the strainer 3, and the passage 12, there then being aback flow from the chambers 14, 9, and 8 outside of the strainer.

The purpose of the rod 7 is to prevent any object from being placed over the orifice 13 for the purpose of squirting the water flowing through said orifice, and incidentally to discourage touching the shell 2 near the orifice. The rod? is, therefore an anti-squirt member, and its presence converts the appliance into an anti-squirt tip.

If desired, an open-top tube 15 may be substituted for the solid'rod 7, in which event there should be an opening or port 16 at the base of said tube. With this anti-squirt member in place, the water enters the tube- 15 from the chamber 14, through the port 16,

and flows upwardly inside of said tube to emerge at the top and join the exterior stream. The port-16 also enables the water to flow down and drain out of the tube 15 into the chamber 14, when the supply is shut off, so that no water: can stand in-said tube to become contaminated.

Not alone the strainer, but the entire interior of the tip is left thoroughly clean and in a'sanitary condition, so far as such condition isattainable through the mediumc of running water. V

More or less change inthe shape, size, con struction, and arrangement of some or all of the parts of thisbubbler tip, in addition to those hereinbefore specifically pointed out,

'may be made without departing from they spirit of our invention, or exceeding, the

scope of what is claimed.

, lVe claim:

1. The combination,

is perforated, andan anti-squirt member extending upwardly from the top of said col-;

lection chamber, of a shell mounted on said base, and having an outlet through which said member extends withoutfilling the same, and an approximately hemispherical filter in said filter chamber. s v

2. The combination, in a bubbler.tip,with a base having an oblique passage, in the wall thereof, provided above said passage with an interior shoulder, and having a filterchamber above said shoulder anda collection cham- I ber above said filter. chamber and opening into the same, the wall of which collection chamber is perforated, and/an anti-squirt member rising from the top of said collection chamber, of an approximately hemispherical filter on said shoulder in said'filter-rchamber, which latter chamber has thereinspaceoutside of said filter, and a sh'ell mounted on said base, and having an outlet through which said member extends without filling the same.

3. The combination, 1n

, a base including a filter chamber and a colleetionchamber, the Wall of the latterhaving an opening therethrough, an antisquirt mem-l ber extending upwardly from the top of said 7 collection chamber, a shell mounted onsaid 1 base having upwardlyextending walls formed a at the upper end thereof toprovidean orifice around said anti-squirt member and the anti-squirt member extending beyond the Walls forming the shell. I

"FRANK A. a, BICKNELL. JULIUS F. BEST. 7.

, in a bubbler tip, with a base having therein a filter chamber anda collection chamber, the wallof'which latter a bubbl-er tip, with 

